“It’s an absolutely absurd idea. Totally unrealistic. I’ll fight it any way I can.”

Told that the mayor’s argument was that commuters should share with city residents the burden of providing city services, Suozzi added: “We have a lot of burdens I’d like to share with the mayor out here in Nassau County.”

Bloomberg’s plan to have commuters pay the same income tax as city residents was met with equally fierce opposition north of the city.

“He wants a tax five times worse than the one we’re against. That says it all,” said Donna Greene, spokeswoman for Westchester County Executive Andy Spano.

She promised Spano would fight a commuter tax “in any form.”

The reaction was identical across the river.

“Gov. [James] McGreevey is going to do anything and everything he can to prevent the imposition of a commuter tax on New Jersey residents working in New York,” said spokesman Kevin Davitt.

Not surprisingly, city leaders were cheering the proposal, which would also cut the top tax rate for residents from 3.65 to 2.25 percent over four years.

City Council Speaker Gifford Miller (D-Manhattan) described it as a “creative approach to solving our revenue problems.”

With the entire City Council up for re-election next year, the tax cut provides “cover” to legislators who’ll be voting for a massive property-tax hike to help close the city’s $6 billion deficit, pointed out one insider.